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<FONT color="green">001</FONT>    package org.hackystat.sensorshell.command;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.Date;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.util.Map;<a name="line.4"></a>
<FONT color="green">005</FONT>    import java.util.logging.Level;<a name="line.5"></a>
<FONT color="green">006</FONT>    <a name="line.6"></a>
<FONT color="green">007</FONT>    import javax.xml.datatype.XMLGregorianCalendar;<a name="line.7"></a>
<FONT color="green">008</FONT>    <a name="line.8"></a>
<FONT color="green">009</FONT>    import org.hackystat.sensorbase.client.SensorBaseClient;<a name="line.9"></a>
<FONT color="green">010</FONT>    import org.hackystat.sensorbase.client.SensorBaseClientException;<a name="line.10"></a>
<FONT color="green">011</FONT>    import org.hackystat.utilities.stacktrace.StackTrace;<a name="line.11"></a>
<FONT color="green">012</FONT>    import org.hackystat.utilities.tstamp.Tstamp;<a name="line.12"></a>
<FONT color="green">013</FONT>    import org.hackystat.sensorbase.resource.sensordata.jaxb.Properties;<a name="line.13"></a>
<FONT color="green">014</FONT>    import org.hackystat.sensorbase.resource.sensordata.jaxb.Property;<a name="line.14"></a>
<FONT color="green">015</FONT>    import org.hackystat.sensorbase.resource.sensordata.jaxb.SensorData;<a name="line.15"></a>
<FONT color="green">016</FONT>    import org.hackystat.sensorbase.resource.sensordata.jaxb.SensorDatas;<a name="line.16"></a>
<FONT color="green">017</FONT>    import org.hackystat.sensorshell.SensorShellException;<a name="line.17"></a>
<FONT color="green">018</FONT>    import org.hackystat.sensorshell.SensorShellProperties;<a name="line.18"></a>
<FONT color="green">019</FONT>    import org.hackystat.sensorshell.SingleSensorShell;<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>    /**<a name="line.21"></a>
<FONT color="green">022</FONT>     * Implements the SensorData commands, of which there is "add", "send", and "statechange".<a name="line.22"></a>
<FONT color="green">023</FONT>     * @author Philip Johnson<a name="line.23"></a>
<FONT color="green">024</FONT>     */<a name="line.24"></a>
<FONT color="green">025</FONT>    public class SensorDataCommand extends Command { <a name="line.25"></a>
<FONT color="green">026</FONT>        <a name="line.26"></a>
<FONT color="green">027</FONT>      private static final String RESOURCE = "Resource";<a name="line.27"></a>
<FONT color="green">028</FONT>      /** The list of unsent SensorData instances. */<a name="line.28"></a>
<FONT color="green">029</FONT>      private SensorDatas sensorDatas = new SensorDatas();<a name="line.29"></a>
<FONT color="green">030</FONT>      /** The Ping Command. */<a name="line.30"></a>
<FONT color="green">031</FONT>      private PingCommand pingCommand;<a name="line.31"></a>
<FONT color="green">032</FONT>      /** The sensorbase client. */<a name="line.32"></a>
<FONT color="green">033</FONT>      private SensorBaseClient client;<a name="line.33"></a>
<FONT color="green">034</FONT>      /** Holds the Resource value from the last StateChange event. */<a name="line.34"></a>
<FONT color="green">035</FONT>      private String lastStateChangeResource = "";<a name="line.35"></a>
<FONT color="green">036</FONT>      /** Holds the bufferSize value from the last StateChange event. */<a name="line.36"></a>
<FONT color="green">037</FONT>      private long lastStateChangeResourceCheckSum = 0;<a name="line.37"></a>
<FONT color="green">038</FONT>      /** Holds the total number of sensor data sent to the server. */<a name="line.38"></a>
<FONT color="green">039</FONT>      private long totalSent = 0;<a name="line.39"></a>
<FONT color="green">040</FONT>      <a name="line.40"></a>
<FONT color="green">041</FONT>      <a name="line.41"></a>
<FONT color="green">042</FONT>      /**<a name="line.42"></a>
<FONT color="green">043</FONT>       * Creates the SensorDataCommand. <a name="line.43"></a>
<FONT color="green">044</FONT>       * @param shell The sensorshell. <a name="line.44"></a>
<FONT color="green">045</FONT>       * @param properties The sensorproperties.<a name="line.45"></a>
<FONT color="green">046</FONT>       * @param pingCommand The Ping Command. <a name="line.46"></a>
<FONT color="green">047</FONT>       * @param client The SensorBase client.<a name="line.47"></a>
<FONT color="green">048</FONT>       */<a name="line.48"></a>
<FONT color="green">049</FONT>      public SensorDataCommand(SingleSensorShell shell, SensorShellProperties properties, <a name="line.49"></a>
<FONT color="green">050</FONT>          PingCommand pingCommand, SensorBaseClient client) {<a name="line.50"></a>
<FONT color="green">051</FONT>        super(shell, properties);<a name="line.51"></a>
<FONT color="green">052</FONT>        this.pingCommand = pingCommand;<a name="line.52"></a>
<FONT color="green">053</FONT>        this.client = client;<a name="line.53"></a>
<FONT color="green">054</FONT>      }<a name="line.54"></a>
<FONT color="green">055</FONT>      <a name="line.55"></a>
<FONT color="green">056</FONT>      /**<a name="line.56"></a>
<FONT color="green">057</FONT>       * Sends accumulated data, including offline and current data from the AddCommand.<a name="line.57"></a>
<FONT color="green">058</FONT>       * If server not pingable, then the offline data is saved for a later attempt.<a name="line.58"></a>
<FONT color="green">059</FONT>       * @return The number of sensor data instances that were sent. <a name="line.59"></a>
<FONT color="green">060</FONT>       * @throws SensorShellException If problems occur sending the data. <a name="line.60"></a>
<FONT color="green">061</FONT>       */<a name="line.61"></a>
<FONT color="green">062</FONT>      public int send() throws SensorShellException {<a name="line.62"></a>
<FONT color="green">063</FONT>        <a name="line.63"></a>
<FONT color="green">064</FONT>        int numDataSent = 0;<a name="line.64"></a>
<FONT color="green">065</FONT>    <a name="line.65"></a>
<FONT color="green">066</FONT>        // Return right away if there is no data to send<a name="line.66"></a>
<FONT color="green">067</FONT>        if (sensorDatas.getSensorData().isEmpty()) {<a name="line.67"></a>
<FONT color="green">068</FONT>          return 0;<a name="line.68"></a>
<FONT color="green">069</FONT>        }<a name="line.69"></a>
<FONT color="green">070</FONT>        // Indicate we're sending if in interactive mode.<a name="line.70"></a>
<FONT color="green">071</FONT>        if (!this.shell.isInteractive()) {<a name="line.71"></a>
<FONT color="green">072</FONT>          this.shell.getLogger().info("#&gt; send" + cr);<a name="line.72"></a>
<FONT color="green">073</FONT>        }<a name="line.73"></a>
<FONT color="green">074</FONT>        <a name="line.74"></a>
<FONT color="green">075</FONT>        // Do a ping to see that we can connect to the server. <a name="line.75"></a>
<FONT color="green">076</FONT>        if (this.pingCommand.isPingable()) {<a name="line.76"></a>
<FONT color="green">077</FONT>          // We can connect, and there is data, so attempt to send.<a name="line.77"></a>
<FONT color="green">078</FONT>          try {<a name="line.78"></a>
<FONT color="green">079</FONT>            this.shell.println("Attempting to send " + sensorDatas.getSensorData().size() <a name="line.79"></a>
<FONT color="green">080</FONT>                + " sensor data instances. Available memory (bytes): " + getAvailableMemory());<a name="line.80"></a>
<FONT color="green">081</FONT>            long startTime = new Date().getTime(); <a name="line.81"></a>
<FONT color="green">082</FONT>            this.client.putSensorDataBatch(sensorDatas);<a name="line.82"></a>
<FONT color="green">083</FONT>            this.shell.println("Successful send to " + this.properties.getSensorBaseHost() +<a name="line.83"></a>
<FONT color="green">084</FONT>                " Elapsed time: " + (new Date().getTime() - startTime) + " ms.");<a name="line.84"></a>
<FONT color="green">085</FONT>            numDataSent = sensorDatas.getSensorData().size();<a name="line.85"></a>
<FONT color="green">086</FONT>            totalSent += numDataSent;<a name="line.86"></a>
<FONT color="green">087</FONT>            this.sensorDatas.getSensorData().clear();<a name="line.87"></a>
<FONT color="green">088</FONT>            return numDataSent;<a name="line.88"></a>
<FONT color="green">089</FONT>          }<a name="line.89"></a>
<FONT color="green">090</FONT>          catch (SensorBaseClientException e) {<a name="line.90"></a>
<FONT color="green">091</FONT>            this.shell.println("Error sending data: " + e);<a name="line.91"></a>
<FONT color="green">092</FONT>            this.shell.println(StackTrace.toString(e));<a name="line.92"></a>
<FONT color="green">093</FONT>            this.sensorDatas.getSensorData().clear();<a name="line.93"></a>
<FONT color="green">094</FONT>            throw new SensorShellException("Could not send data: error in SensorBaseClient", e);<a name="line.94"></a>
<FONT color="green">095</FONT>          }<a name="line.95"></a>
<FONT color="green">096</FONT>        }<a name="line.96"></a>
<FONT color="green">097</FONT>    <a name="line.97"></a>
<FONT color="green">098</FONT>        // If we got here, then the server was not available.<a name="line.98"></a>
<FONT color="green">099</FONT>        if (this.properties.isOfflineCacheEnabled()) {<a name="line.99"></a>
<FONT color="green">100</FONT>          this.shell.println("Server " + this.properties.getSensorBaseHost() + " not available." + <a name="line.100"></a>
<FONT color="green">101</FONT>              " Storing sensor data offline.");<a name="line.101"></a>
<FONT color="green">102</FONT>          this.shell.getOfflineManager().store(this.sensorDatas);<a name="line.102"></a>
<FONT color="green">103</FONT>          this.sensorDatas.getSensorData().clear();<a name="line.103"></a>
<FONT color="green">104</FONT>          return 0;<a name="line.104"></a>
<FONT color="green">105</FONT>        }<a name="line.105"></a>
<FONT color="green">106</FONT>        else {<a name="line.106"></a>
<FONT color="green">107</FONT>          String msg = "Server not available and offline storage disabled. Sensor Data lost.";<a name="line.107"></a>
<FONT color="green">108</FONT>          this.shell.println(msg);<a name="line.108"></a>
<FONT color="green">109</FONT>          this.sensorDatas.getSensorData().clear();<a name="line.109"></a>
<FONT color="green">110</FONT>          throw new SensorShellException(msg);<a name="line.110"></a>
<FONT color="green">111</FONT>        }<a name="line.111"></a>
<FONT color="green">112</FONT>      }<a name="line.112"></a>
<FONT color="green">113</FONT>      <a name="line.113"></a>
<FONT color="green">114</FONT>      /**<a name="line.114"></a>
<FONT color="green">115</FONT>       * Returns the data instance in a formatted string.<a name="line.115"></a>
<FONT color="green">116</FONT>       * @param data The sensor data instance. <a name="line.116"></a>
<FONT color="green">117</FONT>       * @return A string displaying the instance.<a name="line.117"></a>
<FONT color="green">118</FONT>       */<a name="line.118"></a>
<FONT color="green">119</FONT>      private String formatSensorData(SensorData data) {<a name="line.119"></a>
<FONT color="green">120</FONT>        StringBuffer buffer = new StringBuffer(75);<a name="line.120"></a>
<FONT color="green">121</FONT>        buffer.append('&lt;');<a name="line.121"></a>
<FONT color="green">122</FONT>        buffer.append(data.getTimestamp());<a name="line.122"></a>
<FONT color="green">123</FONT>        buffer.append(' ');<a name="line.123"></a>
<FONT color="green">124</FONT>        buffer.append(data.getSensorDataType());<a name="line.124"></a>
<FONT color="green">125</FONT>        buffer.append(' ');<a name="line.125"></a>
<FONT color="green">126</FONT>        buffer.append(data.getOwner());<a name="line.126"></a>
<FONT color="green">127</FONT>        buffer.append(' ');<a name="line.127"></a>
<FONT color="green">128</FONT>        buffer.append(data.getTool());<a name="line.128"></a>
<FONT color="green">129</FONT>        buffer.append(' ');<a name="line.129"></a>
<FONT color="green">130</FONT>        buffer.append(data.getResource());<a name="line.130"></a>
<FONT color="green">131</FONT>        buffer.append(' ');<a name="line.131"></a>
<FONT color="green">132</FONT>        buffer.append(data.getRuntime());<a name="line.132"></a>
<FONT color="green">133</FONT>        buffer.append(' ');<a name="line.133"></a>
<FONT color="green">134</FONT>        for (Property property : data.getProperties().getProperty()) {<a name="line.134"></a>
<FONT color="green">135</FONT>          buffer.append(property.getKey());<a name="line.135"></a>
<FONT color="green">136</FONT>          buffer.append('=');<a name="line.136"></a>
<FONT color="green">137</FONT>          buffer.append(property.getValue());<a name="line.137"></a>
<FONT color="green">138</FONT>          buffer.append(' ');<a name="line.138"></a>
<FONT color="green">139</FONT>        }<a name="line.139"></a>
<FONT color="green">140</FONT>        buffer.append('&gt;');<a name="line.140"></a>
<FONT color="green">141</FONT>        return buffer.toString();<a name="line.141"></a>
<FONT color="green">142</FONT>      }<a name="line.142"></a>
<FONT color="green">143</FONT>     <a name="line.143"></a>
<FONT color="green">144</FONT>      <a name="line.144"></a>
<FONT color="green">145</FONT>      /**<a name="line.145"></a>
<FONT color="green">146</FONT>       * Given a Map containing key-value pairs corresponding to SensorData fields and properties,<a name="line.146"></a>
<FONT color="green">147</FONT>       * constructs a SensorData instance and stores it for subsequent sending to the SensorBase.<a name="line.147"></a>
<FONT color="green">148</FONT>       * @param keyValMap The map of key-value pairs. <a name="line.148"></a>
<FONT color="green">149</FONT>       * @throws SensorShellException If problems occur sending the data.  <a name="line.149"></a>
<FONT color="green">150</FONT>       */<a name="line.150"></a>
<FONT color="green">151</FONT>      public void add(Map&lt;String, String&gt; keyValMap) throws SensorShellException {<a name="line.151"></a>
<FONT color="green">152</FONT>        // Begin by creating the sensor data instance. <a name="line.152"></a>
<FONT color="green">153</FONT>        try {<a name="line.153"></a>
<FONT color="green">154</FONT>        SensorData data = new SensorData();<a name="line.154"></a>
<FONT color="green">155</FONT>        XMLGregorianCalendar tstamp = Tstamp.makeTimestamp();<a name="line.155"></a>
<FONT color="green">156</FONT>        data.setOwner(getMap(keyValMap, "Owner", this.properties.getSensorBaseUser()));<a name="line.156"></a>
<FONT color="green">157</FONT>        data.setResource(getMap(keyValMap, RESOURCE, ""));<a name="line.157"></a>
<FONT color="green">158</FONT>        data.setRuntime(Tstamp.makeTimestamp(getMap(keyValMap, "Runtime", tstamp.toString())));<a name="line.158"></a>
<FONT color="green">159</FONT>        data.setSensorDataType(getMap(keyValMap, "SensorDataType", ""));<a name="line.159"></a>
<FONT color="green">160</FONT>        data.setTimestamp(Tstamp.makeTimestamp(getMap(keyValMap, "Timestamp", tstamp.toString())));<a name="line.160"></a>
<FONT color="green">161</FONT>        data.setTool(getMap(keyValMap, "Tool", "unknown"));<a name="line.161"></a>
<FONT color="green">162</FONT>        data.setProperties(new Properties());<a name="line.162"></a>
<FONT color="green">163</FONT>        // Add all non-standard key-val pairs to the property list. <a name="line.163"></a>
<FONT color="green">164</FONT>        for (Map.Entry&lt;String, String&gt; entry : keyValMap.entrySet()) {<a name="line.164"></a>
<FONT color="green">165</FONT>          Property property = new Property();<a name="line.165"></a>
<FONT color="green">166</FONT>          String key = entry.getKey();<a name="line.166"></a>
<FONT color="green">167</FONT>          if (isProperty(key)) {<a name="line.167"></a>
<FONT color="green">168</FONT>            property.setKey(key);<a name="line.168"></a>
<FONT color="green">169</FONT>            property.setValue(entry.getValue());<a name="line.169"></a>
<FONT color="green">170</FONT>            data.getProperties().getProperty().add(property);<a name="line.170"></a>
<FONT color="green">171</FONT>          }<a name="line.171"></a>
<FONT color="green">172</FONT>        }<a name="line.172"></a>
<FONT color="green">173</FONT>        add(data);<a name="line.173"></a>
<FONT color="green">174</FONT>        }<a name="line.174"></a>
<FONT color="green">175</FONT>        catch (Exception e) {<a name="line.175"></a>
<FONT color="green">176</FONT>          throw new SensorShellException("Error adding sensor data instance.", e);<a name="line.176"></a>
<FONT color="green">177</FONT>        }<a name="line.177"></a>
<FONT color="green">178</FONT>      }<a name="line.178"></a>
<FONT color="green">179</FONT>      <a name="line.179"></a>
<FONT color="green">180</FONT>      /**<a name="line.180"></a>
<FONT color="green">181</FONT>       * Adds the SensorData instance, invoking send if the max buffer size has been exceeded.<a name="line.181"></a>
<FONT color="green">182</FONT>       * @param data The SensorData instance to be added.<a name="line.182"></a>
<FONT color="green">183</FONT>       * @throws SensorShellException If problems occur sending the data. <a name="line.183"></a>
<FONT color="green">184</FONT>       */<a name="line.184"></a>
<FONT color="green">185</FONT>      public void add(SensorData data) throws SensorShellException {<a name="line.185"></a>
<FONT color="green">186</FONT>        sensorDatas.getSensorData().add(data);<a name="line.186"></a>
<FONT color="green">187</FONT>        if (this.shell.getLogger().isLoggable(Level.FINE)) {<a name="line.187"></a>
<FONT color="green">188</FONT>          this.shell.println("Adding: " + formatSensorData(data));<a name="line.188"></a>
<FONT color="green">189</FONT>        }<a name="line.189"></a>
<FONT color="green">190</FONT>        // If that makes the buffer size too big, then send this data. <a name="line.190"></a>
<FONT color="green">191</FONT>        if (sensorDatas.getSensorData().size() &gt; properties.getAutoSendMaxBuffer()) {<a name="line.191"></a>
<FONT color="green">192</FONT>          this.shell.println("Invoking send(); buffer size &gt; " + properties.getAutoSendMaxBuffer());<a name="line.192"></a>
<FONT color="green">193</FONT>          try {<a name="line.193"></a>
<FONT color="green">194</FONT>            this.send();<a name="line.194"></a>
<FONT color="green">195</FONT>          }<a name="line.195"></a>
<FONT color="green">196</FONT>          catch (SensorShellException e) {<a name="line.196"></a>
<FONT color="green">197</FONT>            this.shell.println("Exception during send(): " + e);<a name="line.197"></a>
<FONT color="green">198</FONT>          }<a name="line.198"></a>
<FONT color="green">199</FONT>        }<a name="line.199"></a>
<FONT color="green">200</FONT>      }<a name="line.200"></a>
<FONT color="green">201</FONT>      <a name="line.201"></a>
<FONT color="green">202</FONT>      /**<a name="line.202"></a>
<FONT color="green">203</FONT>       * Provides an easy way for sensors to implement "StateChange" behavior.  From the sensor side,<a name="line.203"></a>
<FONT color="green">204</FONT>       * StateChange can be implemented by creating a timer process that wakes up at regular <a name="line.204"></a>
<FONT color="green">205</FONT>       * intervals and gets the file (resource) that the current active buffer is attached to, plus<a name="line.205"></a>
<FONT color="green">206</FONT>       * a "checksum" (typically the size of the resource in characters or bytes or whatever).  <a name="line.206"></a>
<FONT color="green">207</FONT>       * Then, the timer process simply creates the<a name="line.207"></a>
<FONT color="green">208</FONT>       * appropriate keyValMap as if for an 'add' event, and provides it to this method along with <a name="line.208"></a>
<FONT color="green">209</FONT>       * the buffer size.  This method will check the passed buffer size and the Resource field <a name="line.209"></a>
<FONT color="green">210</FONT>       * against the values for these two fields passed in the last call of this method, and if <a name="line.210"></a>
<FONT color="green">211</FONT>       * either one has changed, then the "add" method is called with the keyValMap.  <a name="line.211"></a>
<FONT color="green">212</FONT>       * @param resourceCheckSum Indicates the state of the resource, typically via its size. <a name="line.212"></a>
<FONT color="green">213</FONT>       * @param keyValMap The map of key-value pairs. <a name="line.213"></a>
<FONT color="green">214</FONT>       * @throws Exception If problems occur while invoking the 'add' command. <a name="line.214"></a>
<FONT color="green">215</FONT>       */<a name="line.215"></a>
<FONT color="green">216</FONT>      public void statechange(long resourceCheckSum, Map&lt;String, String&gt; keyValMap) throws Exception {<a name="line.216"></a>
<FONT color="green">217</FONT>        // Get the Resource attribute, default it to "" if not found.<a name="line.217"></a>
<FONT color="green">218</FONT>        String resource = (keyValMap.get(RESOURCE) == null) ? "" : keyValMap.get(RESOURCE);<a name="line.218"></a>
<FONT color="green">219</FONT>        // Do an add if the resource or buffer size has changed.<a name="line.219"></a>
<FONT color="green">220</FONT>        if (!this.lastStateChangeResource.equals(resource)) { //NOPMD<a name="line.220"></a>
<FONT color="green">221</FONT>          this.shell.println("Invoking add: Resource has changed to: " + resource);<a name="line.221"></a>
<FONT color="green">222</FONT>          this.add(keyValMap);<a name="line.222"></a>
<FONT color="green">223</FONT>        }<a name="line.223"></a>
<FONT color="green">224</FONT>        else if (this.lastStateChangeResourceCheckSum != resourceCheckSum) { //NOPMD<a name="line.224"></a>
<FONT color="green">225</FONT>          this.shell.println("Invoking add: CheckSum has changed to: " + resourceCheckSum);<a name="line.225"></a>
<FONT color="green">226</FONT>          this.add(keyValMap);<a name="line.226"></a>
<FONT color="green">227</FONT>        }<a name="line.227"></a>
<FONT color="green">228</FONT>        else {<a name="line.228"></a>
<FONT color="green">229</FONT>          this.shell.println("No change in resource: " + resource + ", checksum: " + resourceCheckSum);<a name="line.229"></a>
<FONT color="green">230</FONT>        }<a name="line.230"></a>
<FONT color="green">231</FONT>        // Always update the 'last' values.<a name="line.231"></a>
<FONT color="green">232</FONT>        this.lastStateChangeResourceCheckSum = resourceCheckSum;<a name="line.232"></a>
<FONT color="green">233</FONT>        this.lastStateChangeResource = resource;<a name="line.233"></a>
<FONT color="green">234</FONT>      }<a name="line.234"></a>
<FONT color="green">235</FONT>    <a name="line.235"></a>
<FONT color="green">236</FONT>      /**<a name="line.236"></a>
<FONT color="green">237</FONT>       * Returns the value associated with key in keyValMap, or the default if the key is not present.<a name="line.237"></a>
<FONT color="green">238</FONT>       * @param keyValMap The map<a name="line.238"></a>
<FONT color="green">239</FONT>       * @param key The key<a name="line.239"></a>
<FONT color="green">240</FONT>       * @param defaultValue The value to return if the key has no mapping.<a name="line.240"></a>
<FONT color="green">241</FONT>       * @return The value to be used.<a name="line.241"></a>
<FONT color="green">242</FONT>       */<a name="line.242"></a>
<FONT color="green">243</FONT>      private String getMap(Map&lt;String, String&gt; keyValMap, String key, String defaultValue) {<a name="line.243"></a>
<FONT color="green">244</FONT>        return (keyValMap.get(key) == null) ? defaultValue : keyValMap.get(key);<a name="line.244"></a>
<FONT color="green">245</FONT>      }<a name="line.245"></a>
<FONT color="green">246</FONT>      <a name="line.246"></a>
<FONT color="green">247</FONT>      /**<a name="line.247"></a>
<FONT color="green">248</FONT>       * Returns true if the passed key is not one of the standard Sensor Data fields including<a name="line.248"></a>
<FONT color="green">249</FONT>       * "Timestamp", "Runtime", "Tool", "Resource", "Owner", or "SensorDataType".<a name="line.249"></a>
<FONT color="green">250</FONT>       * @param key The key.<a name="line.250"></a>
<FONT color="green">251</FONT>       * @return True if the passed key indicates a property, not a standard sensor data field.<a name="line.251"></a>
<FONT color="green">252</FONT>       */<a name="line.252"></a>
<FONT color="green">253</FONT>      private boolean isProperty(String key) {<a name="line.253"></a>
<FONT color="green">254</FONT>        return <a name="line.254"></a>
<FONT color="green">255</FONT>            (!"Timestamp".equals(key)) &amp;&amp;<a name="line.255"></a>
<FONT color="green">256</FONT>            (!"Runtime".equals(key)) &amp;&amp;<a name="line.256"></a>
<FONT color="green">257</FONT>            (!"Tool".equals(key)) &amp;&amp;<a name="line.257"></a>
<FONT color="green">258</FONT>            (!RESOURCE.equals(key)) &amp;&amp;<a name="line.258"></a>
<FONT color="green">259</FONT>            (!"Owner".equals(key)) &amp;&amp;<a name="line.259"></a>
<FONT color="green">260</FONT>            (!"SensorDataType".equals(key));<a name="line.260"></a>
<FONT color="green">261</FONT>      }<a name="line.261"></a>
<FONT color="green">262</FONT>    <a name="line.262"></a>
<FONT color="green">263</FONT>      /**<a name="line.263"></a>
<FONT color="green">264</FONT>       * Returns the total number of sensor data instances sent so far. <a name="line.264"></a>
<FONT color="green">265</FONT>       * @return The total sent so far by this instance of SensorDataCommand. <a name="line.265"></a>
<FONT color="green">266</FONT>       */<a name="line.266"></a>
<FONT color="green">267</FONT>      public long getTotalSent() {<a name="line.267"></a>
<FONT color="green">268</FONT>        return this.totalSent;<a name="line.268"></a>
<FONT color="green">269</FONT>      }<a name="line.269"></a>
<FONT color="green">270</FONT>      <a name="line.270"></a>
<FONT color="green">271</FONT>      /**<a name="line.271"></a>
<FONT color="green">272</FONT>       * Returns true if this SensorDataCommand instance has remaining unsent data. <a name="line.272"></a>
<FONT color="green">273</FONT>       * @return True if there is data remaining to be sent. <a name="line.273"></a>
<FONT color="green">274</FONT>       */<a name="line.274"></a>
<FONT color="green">275</FONT>      public boolean hasUnsentData() {<a name="line.275"></a>
<FONT color="green">276</FONT>        return ((this.sensorDatas.getSensorData() != null) &amp;&amp;<a name="line.276"></a>
<FONT color="green">277</FONT>            !this.sensorDatas.getSensorData().isEmpty());<a name="line.277"></a>
<FONT color="green">278</FONT>      }<a name="line.278"></a>
<FONT color="green">279</FONT>      <a name="line.279"></a>
<FONT color="green">280</FONT>      /**<a name="line.280"></a>
<FONT color="green">281</FONT>       * Helper method to return the available memory in bytes.<a name="line.281"></a>
<FONT color="green">282</FONT>       * @return The available memory.<a name="line.282"></a>
<FONT color="green">283</FONT>       */<a name="line.283"></a>
<FONT color="green">284</FONT>      private long getAvailableMemory() {<a name="line.284"></a>
<FONT color="green">285</FONT>        Runtime runtime = Runtime.getRuntime();<a name="line.285"></a>
<FONT color="green">286</FONT>        long maxMemory = runtime.maxMemory();<a name="line.286"></a>
<FONT color="green">287</FONT>        long allocatedMemory = runtime.totalMemory();<a name="line.287"></a>
<FONT color="green">288</FONT>        long freeMemory = runtime.freeMemory();<a name="line.288"></a>
<FONT color="green">289</FONT>        return freeMemory + (maxMemory - allocatedMemory);<a name="line.289"></a>
<FONT color="green">290</FONT>      }<a name="line.290"></a>
<FONT color="green">291</FONT>    }<a name="line.291"></a>




























































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